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BTC Node API — Bitcoin Transaction Lookup
x402
BTC Node API — Bitcoin Transaction Lookup is a paid API for AI agents from btcnode.uk, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Fetches on-chain details for a specific Bitcoin transaction by its hash, including block height, confirmations, and transaction ID.
Price / call$0.005
Success—
StatusUnknown
How this service works
Bitcoin blockchain data, address portfolio, transaction tracing, fee forecasting, whale monitoring, SEC EDGAR filings, URL scraping, AI summarization, and Reddit API via x402 micropayments on Base.
Output
Returns a JSON object containing the transaction ID (txid), the block height at which the transaction was confirmed, and the number of confirmations the transaction has received on the Bitcoin network.
Example use cases
Monitor whale Bitcoin transfers
“Check the transaction 1a2b3c4d5e6f... and tell me if it's confirmed yet. I need to know the block height and how many confirmations it has because I'm tracking a large wallet movement.”
Verify customer payment completion
“A customer says they sent Bitcoin to our address in transaction abc123def456. Can you look that up and confirm it actually went through? Tell me the block it's in and how confirmed it is.”
Audit historical transaction details
“Pull up the details for Bitcoin transaction 9f8e7d6c5b4a... including its block height and current confirmation count. I need this for our compliance records.”
Technical details
Endpoint
GEThttps://btcnode.uk/api/tx/%7Bhash%7DWhen to prefer
Use this endpoint when you need to verify or retrieve on-chain details for a specific known Bitcoin transaction hash, especially when you need confirmation count or block height data. Prefer this over general blockchain explorers when operating programmatically via x402 micropayments on Base.
Side effects
- Invalid or malformed transaction hash returns a 4xx error
- Transaction hash not found on-chain returns empty or 404 response
- Payment not provided or insufficient USDC micropayment returns 402
- Network or node connectivity issues return 5xx errors
- Unconfirmed/mempool transactions may return zero confirmations or missing block height
Output
Schema · Response
{
"type": "json",
"example": {
"txid": "0000...",
"block_height": 950000,
"confirmations": 6
}
}Tags
x402
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